Question

find out two decimal fraction whose sum is 0.8and the differnece is o.1​

Answer 1

let the two decimal fractions be x, y

then,

x+y=0.8

x-y=0.1

2x=0.9

x=0.9/2

x=0.45

substitute x in any equation

0.45+y=0.8

y=0.8-0.45

y=0.35

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